CN104602973A - Vehicle side airbag device and method for producing side airbag - Google Patents
Vehicle side airbag device and method for producing side airbag Download PDFInfo
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- CN104602973A CN104602973A CN201380046214.6A CN201380046214A CN104602973A CN 104602973 A CN104602973 A CN 104602973A CN 201380046214 A CN201380046214 A CN 201380046214A CN 104602973 A CN104602973 A CN 104602973A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R21/00—Arrangements or fittings on vehicles for protecting or preventing injuries to occupants or pedestrians in case of accidents or other traffic risks
- B60R21/02—Occupant safety arrangements or fittings, e.g. crash pads
- B60R21/16—Inflatable occupant restraints or confinements designed to inflate upon impact or impending impact, e.g. air bags
- B60R21/23—Inflatable members
- B60R21/231—Inflatable members characterised by their shape, construction or spatial configuration
- B60R21/23138—Inflatable members characterised by their shape, construction or spatial configuration specially adapted for side protection
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R21/00—Arrangements or fittings on vehicles for protecting or preventing injuries to occupants or pedestrians in case of accidents or other traffic risks
- B60R21/02—Occupant safety arrangements or fittings, e.g. crash pads
- B60R21/16—Inflatable occupant restraints or confinements designed to inflate upon impact or impending impact, e.g. air bags
- B60R21/20—Arrangements for storing inflatable members in their non-use or deflated condition; Arrangement or mounting of air bag modules or components
- B60R21/207—Arrangements for storing inflatable members in their non-use or deflated condition; Arrangement or mounting of air bag modules or components in vehicle seats
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R21/00—Arrangements or fittings on vehicles for protecting or preventing injuries to occupants or pedestrians in case of accidents or other traffic risks
- B60R21/02—Occupant safety arrangements or fittings, e.g. crash pads
- B60R21/16—Inflatable occupant restraints or confinements designed to inflate upon impact or impending impact, e.g. air bags
- B60R21/23—Inflatable members
- B60R21/231—Inflatable members characterised by their shape, construction or spatial configuration
- B60R21/2334—Expansion control features
- B60R21/2346—Soft diffusers
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R21/00—Arrangements or fittings on vehicles for protecting or preventing injuries to occupants or pedestrians in case of accidents or other traffic risks
- B60R21/02—Occupant safety arrangements or fittings, e.g. crash pads
- B60R21/16—Inflatable occupant restraints or confinements designed to inflate upon impact or impending impact, e.g. air bags
- B60R21/23—Inflatable members
- B60R21/235—Inflatable members characterised by their material
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R21/00—Arrangements or fittings on vehicles for protecting or preventing injuries to occupants or pedestrians in case of accidents or other traffic risks
- B60R21/02—Occupant safety arrangements or fittings, e.g. crash pads
- B60R21/16—Inflatable occupant restraints or confinements designed to inflate upon impact or impending impact, e.g. air bags
- B60R21/23—Inflatable members
- B60R21/231—Inflatable members characterised by their shape, construction or spatial configuration
- B60R21/23138—Inflatable members characterised by their shape, construction or spatial configuration specially adapted for side protection
- B60R2021/23146—Inflatable members characterised by their shape, construction or spatial configuration specially adapted for side protection seat mounted
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R21/00—Arrangements or fittings on vehicles for protecting or preventing injuries to occupants or pedestrians in case of accidents or other traffic risks
- B60R21/02—Occupant safety arrangements or fittings, e.g. crash pads
- B60R21/16—Inflatable occupant restraints or confinements designed to inflate upon impact or impending impact, e.g. air bags
- B60R21/23—Inflatable members
- B60R21/231—Inflatable members characterised by their shape, construction or spatial configuration
- B60R21/233—Inflatable members characterised by their shape, construction or spatial configuration comprising a plurality of individual compartments; comprising two or more bag-like members, one within the other
- B60R2021/23324—Inner walls crating separate compartments, e.g. communicating with vents
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R21/00—Arrangements or fittings on vehicles for protecting or preventing injuries to occupants or pedestrians in case of accidents or other traffic risks
- B60R21/02—Occupant safety arrangements or fittings, e.g. crash pads
- B60R21/16—Inflatable occupant restraints or confinements designed to inflate upon impact or impending impact, e.g. air bags
- B60R21/23—Inflatable members
- B60R21/231—Inflatable members characterised by their shape, construction or spatial configuration
- B60R21/2334—Expansion control features
- B60R21/2338—Tethers
- B60R2021/23382—Internal tether means
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R21/00—Arrangements or fittings on vehicles for protecting or preventing injuries to occupants or pedestrians in case of accidents or other traffic risks
- B60R21/02—Occupant safety arrangements or fittings, e.g. crash pads
- B60R21/16—Inflatable occupant restraints or confinements designed to inflate upon impact or impending impact, e.g. air bags
- B60R21/23—Inflatable members
- B60R21/231—Inflatable members characterised by their shape, construction or spatial configuration
- B60R21/2334—Expansion control features
- B60R21/2338—Tethers
- B60R2021/23382—Internal tether means
- B60R2021/23384—Internal tether means having ends which are movable or detachable during deployment
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R21/00—Arrangements or fittings on vehicles for protecting or preventing injuries to occupants or pedestrians in case of accidents or other traffic risks
- B60R21/02—Occupant safety arrangements or fittings, e.g. crash pads
- B60R21/16—Inflatable occupant restraints or confinements designed to inflate upon impact or impending impact, e.g. air bags
- B60R21/23—Inflatable members
- B60R21/235—Inflatable members characterised by their material
- B60R2021/23533—Inflatable members characterised by their material characterised by the manufacturing process
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R21/00—Arrangements or fittings on vehicles for protecting or preventing injuries to occupants or pedestrians in case of accidents or other traffic risks
- B60R21/02—Occupant safety arrangements or fittings, e.g. crash pads
- B60R21/16—Inflatable occupant restraints or confinements designed to inflate upon impact or impending impact, e.g. air bags
- B60R21/23—Inflatable members
- B60R21/231—Inflatable members characterised by their shape, construction or spatial configuration
- B60R21/233—Inflatable members characterised by their shape, construction or spatial configuration comprising a plurality of individual compartments; comprising two or more bag-like members, one within the other
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R21/00—Arrangements or fittings on vehicles for protecting or preventing injuries to occupants or pedestrians in case of accidents or other traffic risks
- B60R21/02—Occupant safety arrangements or fittings, e.g. crash pads
- B60R21/16—Inflatable occupant restraints or confinements designed to inflate upon impact or impending impact, e.g. air bags
- B60R21/23—Inflatable members
- B60R21/231—Inflatable members characterised by their shape, construction or spatial configuration
- B60R21/2334—Expansion control features
- B60R21/2338—Tethers
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T29/00—Metal working
- Y10T29/49—Method of mechanical manufacture
- Y10T29/49826—Assembling or joining
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Air Bags (AREA)
Abstract
In the side airbag (20) of this vehicle side airbag device (10), a front bag section (30) and a rear bag section (32) are demarcated by a tether section (24). At the tether section (24), a plurality of gas supply openings (26) are formed. Also, a front extension section (34) extends from the top end section of the rear bag section (32) to the top end side of the front bag section (30). The front extension section (34) and the front bag section (30) are demarcated by a seam section (28).
Description
Technical field
The present invention relates to the manufacture method of a kind of side air bag device for vehicle and side airbag.
Background technology
In the side air bag device for vehicle shown in following patent documentation 1, side airbag has: the rear tube air bag portion extended in the vertical direction by rear view of vehicle side compared with the vehicle-width direction external side end of the chest with the occupant that takes a seat when expanding and launching, and to be positioned at compared with this rear tube air bag portion by vehicle front side and to be positioned at compared with the vehicle-width direction external side end of the chest of the occupant that takes a seat by vehicle front side and the front tube air bag portion extended in the vertical direction.The top in rear tube air bag portion is set as the shoulder side being positioned at the occupant that takes a seat and the shoulder constriction retrained shoulder, the upper limb of front tube air bag is set as, and to be positioned at compared with shoulder constriction by vehicle front side and position lower compared with the armpit of the occupant that takes a seat and carry the arm support bearing portion of the upper arm parts of the occupant that takes a seat.
Namely, in this side air bag device for vehicle, the upper arm parts of occupant of making by being retrained by the shoulder of shoulder constriction to the higher occupant that takes a seat of patience to take a seat is carried in arm support bearing portion, suppresses to upper arm parts between the situation between the chest and safety air bag of the lower occupant that takes a seat of patience.
At first technical literature
Patent documentation
Patent documentation 1: Japanese Unexamined Patent Publication 2010-132072 publication
Summary of the invention
Invent problem to be solved
But in above-mentioned side air bag device for vehicle, when having carried out side collision obliquely from the front, the upper part of the body of the occupant that takes a seat can move to vehicle front and shoulder can depart from from rear tube air bag portion.As its countermeasure, consider make the position, top in rear tube air bag portion cross shoulder center and to vehicle front side extend mode.But, when extending to vehicle front side when merely making position above rear tube air bag portion cross shoulder center, make rear tube air bag portion and front tube air bag portion by seam by the structure that front and back divide owing to have employed in first technology at this, therefore make that energy absorption stroke during side collision is longer becomes difficulty.Therefore, further contemplate as its countermeasure, crease is used to divide rear tube air bag portion and front tube air bag portion, but in the case because the boundary portion place of front tube air bag portion and front extension is also configured with crease, thus this position can become thicker, thus above the pushing away performance and can decline of upper arm parts.
The present invention considers above-mentioned truth, its object is to, provide a kind of and also promptly can to retrain the shoulder of the occupant that takes a seat when having carried out side collision obliquely from the front and to the side air bag device for vehicle of energy absorption of upper arm parts when the situation between the chest and side airbag of the occupant that takes a seat suppresses and can maintain side collision well and the manufacture method of side airbag.
For solving the method for problem
Side air bag device for vehicle involved by first method has: gas filled device, its be arranged at vehicle seat used on, and carry out work when detecting or predict the side collision of vehicle and produce gas, side airbag, it is arranged at the sidepiece place outside the vehicle-width direction in described vehicle seat used back of seat, and be fed into inside by the gas making described gas filled device produce thus launch to expansion between occupant and Vehicular side body of taking a seat, and described side airbag has: air bag portion before retraining the front portion of the chest of the occupant that takes a seat and the front portion of belly, described gas filled device is had and the rear gasbag portion that the rear portion of chest and the rear portion of belly are retrained in internal configurations, extend towards vehicle front side from the upper end in rear gasbag portion and be configured in the vehicle up direction side in front air bag portion and before the shoulder of the occupant that takes a seat is retrained, prolong portion, crease portion, it is configured in the boundary portion place in front air bag portion in described side airbag and rear gasbag portion, and front air bag portion and rear gasbag portion are divided, and described crease portion is formed with the gas supply port that front air bag portion and rear gasbag portion are interconnected, narrow crease portion, it is set in the boundary portion place prolonging portion and front air bag portion before in described side airbag, and with to front prolonging seam that portion and front air bag portion divide or described crease portion, to compare width narrower.
Side air bag device for vehicle involved by second method is, in first method, described side airbag is configured to, and comprising: main pieces of cloth, its by form described rear gasbag portion and described before prolong a slice in portion and described crease portion or two panels forms; The secondary pieces of cloth of pair of right and left, it is preserved for being formed the crease surplus in described crease portion and is sewn relative to main pieces of cloth, and forms described front air bag portion.
Side air bag device for vehicle involved by Third Way is, in first or second method, rectification cloth is configured with in the rear in air bag portion, described rectification cloth have the gas that makes to spray from described gas filled device to vehicle up direction side, the first rectification part of under-vehicle side and these three directions flowings of vehicle front side, the second rectification part and the 3rd rectification part, further, the 3rd rectification part is inserted by the described gas supply port towards described crease portion.
The manufacture method of the side airbag involved by fourth way has: pieces of cloth link process, make indulging edge to the pair of the secondary pieces of cloth of pair of right and left from main vertical edge on the position that the centerline side of main pieces of cloth offset by relative to main pieces of cloth, wherein, described main pieces of cloth have the rear gasbag portion forming portion in the rear gasbag portion retrained for the formation of the rear portion of the chest to the occupant that takes a seat and the rear portion of belly, with the end for the formation of the length direction from rear gasbag portion forming portion extend to the direction intersected with rear gasbag portion forming portion and before prolonging portion before the shoulder of the occupant that takes a seat is retrained, prolong portion's forming portion, and described main pieces of cloth are set as symmetrical shape, and there is at the both side edges place of rear gasbag portion forming portion main vertical edge described in pair of right and left and at two lower edges front prolonging portion's forming portion, there is the main horizontal edge portion of pair of right and left, described secondary pieces of cloth have described pair to be indulged edge at side's lateral margin place and has secondary horizontal edge portion at the upper limb place intersected with side's lateral margin, and air bag portion before retraining for the formation of the front portion of the chest to the occupant that takes a seat and the front portion of belly, crease portion formation process, indulges edge to the master of described main pieces of cloth and makes each other, thus forms the crease portion possessing gas supply port, seam formation process, by overlapping for a pair secondary horizontal edge portion of secondary to a pair of described main pieces of cloth main horizontal edge portion and described pair of right and left pieces of cloth and make, operation is made in periphery, makes the peripheral part of described main pieces of cloth and the peripheral part of described secondary pieces of cloth.
The manufacture method of the side airbag involved by the 5th mode is, in fourth way, when implementing described crease portion formation process, the top ends of the 3rd rectification part of rectification cloth is inserted to indulge together with edge in described gas supply port and with the master of described main pieces of cloth and make, wherein, described rectification cloth has the forming portion side, rear gasbag portion that is configured in described main pieces of cloth and the first rectification part that gas is flowed to the both ends of the length direction of rear gasbag portion forming portion and the second rectification part, extend with to the direction intersected with the first rectification part and the second rectification part and make the 3rd rectification part that gas flows to bearing of trend.
The manufacture method of the side airbag involved by the 6th mode is, in fourth way, cut portion edge being formed with semicircle shape is indulged described pair of right and left master, in described crease portion formation process, indulge edge by making described pair of right and left master and be sewn each other together thus define round-shaped gas supply port.
The manufacture method of the side airbag involved by the 7th mode is, in the 5th mode, by making the peripheral part of the two panels base cloth being cut into T-shaped, thus described rectification cloth is produced in advance in the mode with described side airbag split, in described crease portion formation process, the top ends of described 3rd rectification part is inserted in described gas supply port and indulges together with edge with the described master of described main pieces of cloth and make.
The manufacture method of the side airbag involved by eighth mode is, in the 5th or the 7th mode, in described crease portion formation process, when indulging edge to the master of described main pieces of cloth and making each other, by downside sewing line on the lower compared with described 3rd rectification part and compared with described 3rd rectification part the upside sewing line of top side separate and make, and, the upper end of sewing line on the downside of this is extended to the tip side of described 3rd rectification part, and the bottom of sewing line on the upside of this is extended to the tip side of described 3rd rectification part.
According to first method, when detecting or predict the side collision of vehicle, gas filled device can produce gas.Be configured in the inside in the rear gasbag portion of side airbag due to gas filled device, therefore can expand expansion at first in rear gasbag portion.Thus, taking a seat the rear portion of the rear portion of chest of occupant and belly can be restrained.Further, extend towards vehicle front side owing to front prolonging portion and be configured in the vehicle up direction side in front air bag portion from the upper end in rear gasbag portion, before the gas therefore produced from gas filled device is also supplied to, prolonging portion.Thus, the shoulder of occupant of making to take a seat is restrained.Further, because rear gasbag portion and front air bag portion are interconnected by the gas supply port to the crease that both divide, the part being thus supplied to the gas in rear gasbag portion can by gas supply port by towards front air bag portion internal feed.Thus, front air bag portion can be later than rear gasbag portion and expansion of expanding, and the front portion of the chest of the occupant that makes to take a seat and the front portion of belly restrained.
At this, in the manner, because the portion that front prolongs extends from the upper end in rear gasbag portion towards vehicle front side thus the vehicle up direction side being configured in front air bag portion, as mentioned above even if therefore also can promptly retrain shoulder when having carried out side collision obliquely from the front.In addition, in the present invention, because rear gasbag portion and front air bag portion are divided by crease, thus compared with the structure be divided by seam with both, energy absorption stroke during side collision can be guaranteed.Further, in the present invention, owing to front prolonging portion and front air bag portion is divided by seam or narrow crease portion, the expansion that the upper arm parts of the occupant that thus takes a seat can correspond to side airbag launches action and be pushed away by vehicle up direction side.
According to second method, side airbag is configured to, and comprises the main pieces of cloth be made up of a slice or two panels, pieces of cloth secondary with pair of right and left.And, owing to have employed the structure of making secondary pieces of cloth to retain crease surplus relative to main pieces of cloth, thus with in advance crease cut respectively with side airbag and make compared with the structure on main pieces of cloth, its structure is more simply and easily make.
According to Third Way, in rear gasbag portion, inner place is configured with rectification cloth.Therefore, the gas produced from gas filled device can move from the first rectification part to vehicle up direction effluent and can move from the second rectification part to under-vehicle effluent, also can flow from the 3rd rectification part to vehicle front side.The gas supply port inserting crease portion due to the 3rd rectification part is inner, thus the gas that have passed the 3rd rectification part can flow to front air bag portion.Like this, because rectification cloth possesses the first rectification part, the second rectification part and the 3rd rectification part, front air bag portion premature inflation thus can be made to launch.
According to fourth way, by manufacture side airbag will be got as follows.First, in pieces of cloth link process, the secondary pieces of cloth of pair of right and left are linked relative to main pieces of cloth.Specifically, the pair of secondary pieces of cloth is indulged the edge master be sewn in the rear gasbag portion forming portion from main pieces of cloth and is indulged the position that edge offset by the centerline side of main pieces of cloth.Next, in crease portion formation process, the master of main pieces of cloth indulges edge and is sewn together each other, thus forms the crease portion with gas supply port.Next, in seam formation process, a pair secondary horizontal edge portion of a pair main horizontal edge portion of main pieces of cloth and the secondary pieces of cloth of pair of right and left makes superimposedly.Finally, make in periphery in operation, together with the peripheral part of main pieces of cloth is sewn with the peripheral part of secondary pieces of cloth.Thus, define rear gasbag portion by rear gasbag portion forming portion and crease portion, and, prolonging portion before defining by front prolonging portion's forming portion, also defining front air bag portion by crease portion and the secondary pieces of cloth of pair of right and left.
According to the 5th mode, have the rectification cloth comprising the first rectification part, the second rectification part and the 3rd rectification part, when implementing crease portion formation process, the top ends of the 3rd rectification part of this rectification cloth is inserted by the gas supply port inside towards crease portion.And, with the master of main pieces of cloth indulge edge by together with make.
Invention effect
As discussed above, side air bag device for vehicle involved by first method has following excellent effect, namely, even if also can promptly retrain the shoulder of the occupant that takes a seat when carrying out side collision obliquely from the front, and can suppressing between the situation between the chest and side airbag of the occupant that takes a seat upper arm parts, and energy absorption when can maintain side collision well.
Side air bag device for vehicle involved by second method has following effect, that is, can obtain the side airbag reaching above-mentioned purpose with simple structure.
Side air bag device for vehicle involved by Third Way has following excellent effect, that is, due to front air bag portion premature inflation can be made to launch, that thus can improve upper arm parts above pushes away effect.
The manufacture method of the side airbag involved by fourth way has following excellent effect, that is, can produce side airbag simply.
The manufacture method of the side airbag involved by the 5th mode has following excellent effect, that is, comprise the rectification cloth with the first rectification part, the second rectification part and the 3rd rectification part, can produce side airbag simply.
Accompanying drawing explanation
Fig. 1 for carried the side air bag device for vehicle involved by the first embodiment of the present invention vehicle seat used in, represent that side airbag expands the lateral plan of the state expanded.
Fig. 2 is the enlarged side view of the side airbag shown in Watch with magnifier diagram 1.
Fig. 3 is for representing the birds-eye view of the side airbag shown in Fig. 2 with the state before making cloth chip architecture.
Fig. 4 is that represent the side airbag of the side air bag device for vehicle involved by the second embodiment of the present invention, corresponding with Fig. 2 enlarged side view.
Fig. 5 is for being cut into half to represent the enlarged side view with the relation of rectification cloth by the main pieces of cloth shown in Fig. 4.
Detailed description of the invention
< first embodiment >
Below, Fig. 1 ~ Fig. 3 is used to be described with side air bag device 10 vehicle involved by the first embodiment of the present invention.In addition, represented vehicle front side by suitable graphic arrow FR in the figure, arrow UP represents vehicle up direction side, and arrow IN represents inside vehicle-width direction.
As shown in Figure 1, the side air bag device for vehicle 10 originally involved by the first embodiment is equipped on the vehicle door side side surface part 14A place (sidepiece of not shown car door side, side) of the back of seat 14 in vehicle seat used 12.This back of seat 14 is linked to the rearward end place of cushion 16 in dumpable mode, and is linked with headrest 18 in the upper end of described back of seat 14.
In addition, in the present embodiment, vehicle seat used 12 fore-and-aft direction, the fore-and-aft direction of left and right directions (Width) and above-below direction and vehicle, left and right directions (Width) and above-below direction consistent.In addition, in FIG, on vehicle seat used 12, replace actual occupant and the international uniform side collision dummy that taken a seat (World Side Impact Dummy:WorldSID) P.The posture of taking a seat of this international uniform side collision dummy P is, the posture determined in Japan, the side collision test method(s) (ECER95) that adopts of Europe or the side collision test method(s) (FMVSS214) that adopts in the U.S. at present.In addition, the angle of inclination relative to Chain cushion 16 (dump angle) of back of seat 14 is arranged on the benchmark desired location corresponding with above-mentioned posture of taking a seat.Below, in order to the facility illustrated, international uniform side collision dummy P is called " take a seat occupant P ".
Side air bag device for vehicle 10 is using hereinafter described side airbag 20, formed as main portion with the gas filled device (gas body development green hand section) 22 producing gas in this side airbag 20.Side airbag 20 is configured (storage) in the inside of vehicle door side side surface part 14A under state that is folded and that be componentized together with gas filled device 22 grade, and is launched (state illustrated in Fig. 1) by the pressure and expanding between the car door interior decorating and fitting (Vehicular side body) of take a seat occupant P and side car door of the gas produced from gas filled device 22.And become following structure, that is, when this expansion launches, owing to being subject to the expansion pressure of side airbag 20, thus the not shown seat back cushion be configured on vehicle door side side surface part 14A can rupture and not shown seat skin can ftracture.In addition, upper and lower direction, the front and back of side airbag 20 described in the following description is as long as no predicting especially, then represent the direction under side airbag 20 expands the state that expands, and the direction upper and lower with the front and back of back of seat 14 is roughly consistent.
As shown in Figure 1 and Figure 2, side airbag 20 is formed bag-shaped, and is formed when carrying out side and observing roughly using the rectangular shape of vehicle above-below direction as long side direction.In addition, at the pars intermedia place of the fore-and-aft direction of side airbag 20, the crease portion 24 roughly vertical direction of vehicle configured as length direction is provided with by making.The bottom of crease portion 24 safety air bag 20 from the side rise across and side airbag 20 short transverse on about 2/3 height and be configured to linearity.In addition, crease portion 24 as be configured to predetermined Width size band shape cloth material and form.Further, the top of the length direction in crease portion 24 and bottom place are formed with multiple (upper and lower a pair) gas supply port 26.
Further, at the top place of side airbag 20, be provided with across and predetermined length and with linearity extend seam 28.Seam 28 from the upper end in crease portion 24 towards vehicle front and vehicle oblique upper extend, and to lean forward when observing in side.
According to said structure, side airbag 20 possesses: front air bag portion 30, and it is configured in compared with crease portion 24 and seam 28 by vehicle front side; Rear gasbag portion 32, it is configured in compared with crease portion 24 by rear view of vehicle side; Before prolong portion 34, it extends towards vehicle front side and is configured in the vehicle up direction side in front air bag portion 30 from the upper end in rear gasbag portion 32.Front air bag portion 30 is interconnected with rear gasbag portion 32 via gas supply port 26, and retrains the front portion of the chest C of the occupant P that takes a seat and the front portion of belly B.In addition, have gas filled device 22 in the internal configurations in rear gasbag portion 32, and described rear gasbag portion 32 retrains to the rear portion of the chest C of the occupant P that takes a seat and the rear portion of belly B.Further, the front portion 34 that prolongs is interconnected by with rear gasbag portion 32, and retrains the shoulder S of the occupant P that takes a seat.
As described above, gas filled device 22, diffuser 36 and rectification cloth 38 is had in the internal configurations in rear gasbag portion 32.Gas filled device 22 is set as the inflator type of substantial cylindrical shape, and, on an end (end of vehicle up direction side) of its length direction, be formed with gas blowing unit 22A in coaxial upper giving prominence to.Be formed with multiple gas squit hole 40 at gas blowing unit 22A place, when gas filled device 22 works, a large amount of gas can be produced from these gas squit holes 40.
Around the gas blowing unit 22A of above-mentioned gas filled device 22, be configured with large one metal of enclosing compared with gas filled device 22 and the diffuser 36 of cylindrical shape.Further, above-mentioned gas filled device 22 and diffuser 36 are inserted into the inside of rectification cloth 38, and this rectification cloth 38 is formed cylindrical shape and upper and lower end parts is set as the first rectification part 42 and the second rectification part 44.And, as an example, diffuser 36 is fixing by riveted joint relative to gas filled device 22, the not shown thru-bolt outstanding to radial direction lateral surface from the peripheral part of diffuser 36 runs through rectification cloth 38, and by nut on the combined lateral frame being fixed on not shown backrest frame.
In addition, as shown in Figure 1, gas filled device 22 is electrically connected with the side collision ECU46 be equipped on vehicle.This side collision ECU46 is electrically connected with the side impact sensor 48 that the collision of offside face is carried out detecting.Side collision ECU46 is set as, structure gas filled device 22 being worked when side collision (inevitable) being detected according to the signal from side impact sensor 48.In addition, when being that side collision ECU46 being electrically connected with the collision of offside face carries out the both pre-impact predicting (prediction), also following structure can be adopted, namely, when side collision ECU46 predicts side collision according to the signal from both pre-impact, gas filled device 22 is made to carry out work.
As shown in Figure 3, above-mentioned side airbag 20 is made up of main pieces of cloth 50 and two secondary pieces of cloth 52 of pair of right and left.When making main pieces of cloth 50 and the secondary pieces of cloth 52 of pair of right and left align, two pieces of cloth (Ji Bu) being set as track (track) shape are separately made to adjoin and be configured and become the shape being formed one.
Specifically, main pieces of cloth 50 are by being roughly formed as rectangular shape and the short brink of a side is cut into the rear gasbag portion forming portion 54 of roughly chevron and stretches out from the short brink of the opposing party of this rear gasbag portion forming portion 54 to the direction be separated from each other for prolonging portion's forming portion 56 before a pair of fan-shaped and form.Rear gasbag portion forming portion 54 is the part for the formation of the rear gasbag portion 32 (Fig. 1 reference) retrained the chest C of the occupant P that takes a seat and the rear portion of belly B.In addition, front portion's forming portion 56 of prolonging is for the formation of the part of prolonging portion 34 before retraining the shoulder S of the occupant P that takes a seat (with reference to Fig. 1).
Above-mentioned main pieces of cloth 50 are formed the shape of symmetrical about centre line C L (line is symmetrical).When making main pieces of cloth 50 in the doubling of centre line C L place, front portion's forming portion 56 of prolonging is to relative to rear gasbag portion forming portion 54, the direction of diagonal cross extends (stretching out).In addition, the both side edges of rear gasbag portion forming portion 54 extends abreast, this both side edges is formed with respectively the cut portion 58 of the semicircle shape of upper and lower a pair.Below, the both side edges of rear gasbag portion forming portion 54 is called " main vertical edge 62 ", before a pair, prolongs being called in " main horizontal edge portion 64 " with the edge of linearity extension obliquely of portion's forming portion 56.
On the other hand, an end of the length direction of secondary pieces of cloth 52 is set as quadrntnt shape, and the shape that the other end of length direction has been set as by oblique cutting.These secondary pieces of cloth 52 are the part (with reference to Fig. 1) in air bag portion 30 before retraining for the formation of the front portion of the chest C to the occupant P that takes a seat and the front portion of belly B.Below, the lateral margin of the main pieces of cloth configuration side of secondary pieces of cloth 52 is called " secondary vertical edge 66 ", is called along the main horizontal edge portion 64 front prolonging portion's forming portion 56 in " secondary horizontal edge portion 68 " with the edge of linearity extension obliquely.
(effect and effect)
Next, the effect of present embodiment and effect are described.
Side airbag 20 is produced by following will getting.First, as shown in Figure 3, in pieces of cloth link process, the secondary pieces of cloth 52 of pair of right and left are linked relative to main pieces of cloth 50.Specifically, in the rear gasbag portion forming portion 54 of main pieces of cloth 50, offset by position (sewing line X) place of predetermined length δ in the centre line C L side to main pieces of cloth 50 from main vertical edge 62, the pair being sewed with secondary pieces of cloth 52 indulges edge 66.In addition, at sewing line (single dotted broken line) place indulging edge 66 along pair, be attached with the symbol " X " identical with the described sewing line X of main pieces of cloth 50.
Next, in crease portion formation process, make the master of main pieces of cloth 50 indulge edge 62 and be sewn together one another along sewing line Y (long and two-short dash line).Thus, the cut portion 58 being set as the pair of right and left of semi-circular shape is separately each one, thus defines the crease portion 24 with upper and lower a pair gas supply port 26.
Next, in seam formation process, together with a pair main horizontal edge portion 64 of main pieces of cloth 50 and a pair secondary horizontal edge portion 68 of the secondary pieces of cloth 52 of pair of right and left are sewn by four plies and along sewing line Z (three long and short dash lines).Finally, make in periphery in operation, together with the peripheral part of main pieces of cloth 50 and the peripheral part of secondary pieces of cloth 52 are sewn at sewing unit 70 place.Thus, as pieces of cloth combination, define rear gasbag portion 32 by rear gasbag portion forming portion 54 and crease portion 24, and prolong portion 34 before defining by front prolonging portion's forming portion 56, also define front air bag portion 30 by crease portion 24 and the secondary pieces of cloth 52 of pair of right and left.
In the side air bag device for vehicle 10 of said structure, when side collision ECU46 detects side collision by the signal from side impact sensor 48, gas filled device 22 is made to carry out work by this side collision ECU46.When gas filled device 22 carries out work, a large amount of gas can be produced, the gas produced by diffuser 36 and rectification cloth 38 by towards vehicle up direction (arrow G 1 direction of Fig. 2) and under-vehicle (arrow G 2 direction of Fig. 2) this both direction rectification.Thus, the rear gasbag portion 32 of side airbag 20 and before prolong portion 34 and be inflated and deployed at first, thus the rear portion of the rear portion of chest C of the occupant P that makes to take a seat, the rear portion of belly B and waist L and shoulder S restrained.And, because rear gasbag portion 32 and front air bag portion 30 are interconnected by the gas supply port 26 to the crease portion 24 that both divide, the part being therefore fed into the gas in rear gasbag portion 32 can be supplied by towards inside, front air bag portion 30 (arrow G 3 direction to Fig. 2) by gas supply port 26.Thus, front air bag portion 30 is later than rear gasbag portion 32 and expands and launch, thus the front portion of the front portion of chest C of the occupant P that makes to take a seat, the front portion of belly B and waist L is restrained.
At this, in the present embodiment, extend towards vehicle front side owing to front prolonging portion 34 from the upper end in rear gasbag portion 32 and be configured in the vehicle up direction side in front air bag portion 30 as mentioned above, therefore when having carried out side collision obliquely from the front, shoulder S can be promptly restrained.In addition, due in the present embodiment, rear gasbag portion 32 and front air bag portion 30 are divided by crease portion 24, compared with the structure be therefore divided by seam with both, can guarantee energy absorption stroke during side collision.Further, in the present embodiment, be divided with front air bag portion 30 owing to front prolonging portion 34 by seam 28, the upper arm parts A of the occupant P that therefore takes a seat corresponds to the expansion expansion action of side airbag 20 and is pushed away by vehicle up direction side.That is, upper arm parts A can be pushed away along the larger dip plane inside the upper end being formed at front air bag portion 30 or plane of bending by vehicle up direction side.
As previously discussed, side air bag device for vehicle 10 involved according to the present embodiment, even if also promptly can retrain the shoulder S of the occupant P that takes a seat when having carried out side collision obliquely from the front, and can suppressing between the situation between the chest C and side airbag 20 of the occupant P that takes a seat upper arm parts A, and energy absorption when can maintain side collision well.
< second embodiment >
Next, Fig. 4 and Fig. 5 is used to be described with side air bag device 10 vehicle involved by the second embodiment of the present invention.In addition, also the description thereof will be omitted to add duplicate numbers to the structure division identical with previously described first embodiment.
As shown in FIG. 4 and 5, in this second embodiment, it is characterized in that, rectification cloth 80 is formed T-shaped and becomes trifid structure this point.Specifically, rectification cloth 80 is made up of main part 80A and branch 80B, wherein, this main part 80A is formed cylindrical shape, and upper and lower end parts is set as the first rectification part 82 and the second rectification part 84, this branch 80B from the position, midway axially of this main part 80A to relative to axial and orthogonal direction extend and be cylindrical shape.The top ends of branch 80B is set as the 3rd rectification part 86, and at front air bag portion 30 inner open.Above-mentioned rectification cloth 80 by making the peripheral part of two the base cloth being cut into T-shaped, thus with side airbag 20 split produced in advance.
In addition, the rectification cloth 80 of said structure, when implementing crease portion formation process, is mounted as follows relative to main pieces of cloth 50.That is, the master of the left and right to main pieces of cloth 50 indulge edge 88 make each other time, make the top ends of branch 80B insert the allocation position of gas supply port 26 at first.Then, when making main vertical edge 88, the left and right of main pieces of cloth 50, by downside sewing line Y1 on the lower compared with branch 80B and compared with branch 80B the upside sewing line Y2 of top side separate and make.Now, the upper end of downside sewing line Y1 is extended to the top ends side of branch 80B, and the bottom of upside sewing line Y2 is extended to the top ends side of branch 80B.
(effect, effect)
According to said structure, in rear gasbag portion 32, internal configurations has rectification cloth 80.Therefore, the gas produced from gas filled device 22 can flow to vehicle up direction side (arrow G 1 direction of Fig. 4) from the first rectification part 82, and to under-vehicle side (arrow G 2 direction of Fig. 2) flowing from the second rectification part 84, also can flow to vehicle front side (arrow G 3 direction of Fig. 2) from the 3rd rectification part 86.Because the 3rd rectification part 86 is inserted by the gas supply port 26 in crease portion 24, the gas therefore passed through from the 3rd rectification part 86 will flow to front air bag portion 30.So, because rectification cloth 80 possesses the first rectification part 82, second rectification part 84 and the 3rd rectification part 86, therefore, it is possible to make front air bag portion 30 premature inflation launch.Its result is, according to the present embodiment, that can improve the upper arm parts A of the occupant P that takes a seat above pushes away effect.
In addition, according to the present embodiment, have the rectification cloth 80 comprising the first rectification part 82, second rectification part 84 and the 3rd rectification part 86, when implementing crease portion formation process, the top ends of the 3rd rectification part 86 of this rectification cloth 80 is inserted by the gas supply port 26 in crease portion 24.And, indulged together with edge 88 (the main vertical edge 88A in downside and the main vertical edge 88B in upside) with the master of main pieces of cloth 50 and made.Its result is, according to the present embodiment, can produce the side airbag 20 comprising the rectification cloth 80 with the first rectification part 82, second rectification part 84 and the 3rd rectification part 86 simply.
The supplemental instruction > of < embodiment
Although in above-mentioned each embodiment, divided with front air bag portion 30 front prolonging portion 34 by seam 28, the present invention is not limited thereto, and also can be divided both by the narrow crease portion that width compared with crease portion 24 is narrower.
In addition, although in the first above-mentioned embodiment, the crease surplus δ for the formation of crease portion 24 is obtained equably from the left and right sides of the rear gasbag portion forming portion 54 of main pieces of cloth 50, but be not limited thereto, also can not be impartial, the one party of crease portion in the left and right sides edge of rear gasbag portion forming portion 54 can also be made and main vertical edge is made each other.And, similarly, in the first above-mentioned embodiment, when forming crease portion 24, do not make otch vertically enter centre line C L side at the upper end of main vertical edge 62, this is in order to avoid occurring owing to making otch enter thus forming the situation at the position that stress is concentrated.If the reinforcement etc. implementing to repair etc. and the problem that stress concentrates can not be produced, then also otch can be entered from the upper end of main vertical edge.
And, although in above-mentioned each embodiment, produce side airbag 20 by making base cloth, but be not limited thereto, also can be implemented bag-shaped braiding by one-piece woven (OnePiece Woven) mode being called as OPW and integrated by weaving.The side airbag of OPW mode is, uses jacquard loom and while knitting system to two pieces of cloth, carries out linking braiding thus be bag-shaped without the air bag made to the position of necessity.
And, although in above-mentioned each embodiment, have employed structure shoulder S, the chest C of the occupant P that takes a seat, belly B and waist L retrained by side airbag 20, but be not limited to this, side airbag only need at least retrain the shoulder of the occupant that takes a seat, chest and belly.
In addition, although in above-mentioned each embodiment, at centre line C L place, doubling has been carried out to main pieces of cloth 50, but be not limited thereto, also can adopt the main pieces of cloth being split into two pieces in advance.
Claims (8)
1. a side air bag device for vehicle, has:
Gas filled device, its be arranged at vehicle seat used on, and carry out work when detecting or predict the side collision of vehicle and produce gas;
Side airbag, it is arranged at the sidepiece place outside the vehicle-width direction in described vehicle seat used back of seat, and be fed into inside by the gas making described gas filled device produce thus launch to expansion between occupant and Vehicular side body of taking a seat, and described side airbag has: air bag portion before retraining the front portion of the chest of the occupant that takes a seat and the front portion of belly, described gas filled device is had and the rear gasbag portion that the rear portion of chest and the rear portion of belly are retrained in internal configurations, extend towards vehicle front side from the upper end in rear gasbag portion and be configured in the vehicle up direction side in front air bag portion and before the shoulder of the occupant that takes a seat is retrained, prolong portion,
Crease portion, it is configured in the boundary portion place in front air bag portion in described side airbag and rear gasbag portion, and front air bag portion and rear gasbag portion are divided, and described crease portion is formed with the gas supply port that front air bag portion and rear gasbag portion are interconnected;
Narrow crease portion, it is set in the boundary portion place prolonging portion and front air bag portion before in described side airbag, and with to front prolonging seam that portion and front air bag portion divide or described crease portion, to compare width narrower.
2. side air bag device for vehicle as claimed in claim 1, wherein,
Described side airbag is configured to, and comprising:
Main pieces of cloth, its by form described rear gasbag portion and described before prolong a slice in portion and described crease portion or two panels forms;
The secondary pieces of cloth of pair of right and left, it is preserved for being formed the crease surplus in described crease portion and is sewn relative to main pieces of cloth, and forms described front air bag portion.
3. as side air bag device for vehicle according to claim 1 or claim 2, wherein,
Rectification cloth is configured with in the rear in air bag portion, described rectification cloth have the gas that makes to spray from described gas filled device to vehicle up direction side, the first rectification part of under-vehicle side and these three directions flowings of vehicle front side, the second rectification part and the 3rd rectification part
Further, the 3rd rectification part is inserted by the described gas supply port towards described crease portion.
4. a manufacture method for side airbag, wherein, has:
Pieces of cloth link process, make indulging edge to the pair of the secondary pieces of cloth of pair of right and left from main vertical edge on the position that the centerline side of main pieces of cloth offset by relative to main pieces of cloth, wherein, described main pieces of cloth have the rear gasbag portion forming portion in the rear gasbag portion retrained for the formation of the rear portion of the chest to the occupant that takes a seat and the rear portion of belly, with the end for the formation of the length direction from rear gasbag portion forming portion extend to the direction intersected with rear gasbag portion forming portion and before prolonging portion before the shoulder of the occupant that takes a seat is retrained, prolong portion's forming portion, and described main pieces of cloth are set as symmetrical shape, and there is at the both side edges place of rear gasbag portion forming portion main vertical edge described in pair of right and left and at two lower edges front prolonging portion's forming portion, there is the main horizontal edge portion of pair of right and left, described secondary pieces of cloth have described pair to be indulged edge at side's lateral margin place and has secondary horizontal edge portion at the upper limb place intersected with side's lateral margin, and air bag portion before retraining for the formation of the front portion of the chest to the occupant that takes a seat and the front portion of belly,
Crease portion formation process, indulges edge to the master of described main pieces of cloth and makes each other, thus forms the crease portion possessing gas supply port;
Seam formation process, by overlapping for a pair secondary horizontal edge portion of secondary to a pair of described main pieces of cloth main horizontal edge portion and described pair of right and left pieces of cloth and make;
Operation is made in periphery, makes the peripheral part of described main pieces of cloth and the peripheral part of described secondary pieces of cloth.
5. the manufacture method of side airbag as claimed in claim 4, wherein,
When implementing described crease portion formation process, the top ends of the 3rd rectification part of rectification cloth is inserted to indulge together with edge in described gas supply port and with the master of described main pieces of cloth and make, wherein, described rectification cloth has the forming portion side, rear gasbag portion that is configured in described main pieces of cloth and the first rectification part that gas is flowed to the both ends of the length direction of rear gasbag portion forming portion and the second rectification part and extend to the direction intersected with the first rectification part and the second rectification part and make the 3rd rectification part that gas flows to bearing of trend.
6. the manufacture method of side airbag as claimed in claim 4, wherein,
Cut portion edge being formed with semicircle shape is indulged described pair of right and left master,
In described crease portion formation process, indulge edge by making described pair of right and left master and be sewn each other together thus define round-shaped gas supply port.
7. the manufacture method of side airbag as claimed in claim 5, wherein,
By making the peripheral part of the two panels base cloth being cut into T-shaped, thus described rectification cloth is produced in advance in the mode with described side airbag split,
In described crease portion formation process, the top ends of described 3rd rectification part is inserted in described gas supply port and indulges together with edge with the described master of described main pieces of cloth and make.
8. as the manufacture method of claim 5 or side airbag according to claim 7, wherein,
In described crease portion formation process, when indulging edge to the master of described main pieces of cloth and making each other, by downside sewing line on the lower compared with described 3rd rectification part and compared with described 3rd rectification part the upside sewing line of top side separate and make, and, the upper end of sewing line on the downside of this is extended to the tip side of described 3rd rectification part, and the bottom of sewing line on the upside of this is extended to the tip side of described 3rd rectification part.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2012194303A JP5692190B2 (en) | 2012-09-04 | 2012-09-04 | Side airbag device for vehicle and method for manufacturing side airbag |
| JP2012-194303 | 2012-09-04 | ||
| PCT/JP2013/073366 WO2014038486A1 (en) | 2012-09-04 | 2013-08-30 | Vehicle side airbag device and method for producing side airbag |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104602973A true CN104602973A (en) | 2015-05-06 |
| CN104602973B CN104602973B (en) | 2016-12-14 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201380046214.6A Active CN104602973B (en) | 2012-09-04 | 2013-08-30 | Side air bag device for vehicle and the manufacture method of side airbag |
Country Status (5)
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| US (1) | US9399440B2 (en) |
| EP (1) | EP2894068B1 (en) |
| JP (1) | JP5692190B2 (en) |
| CN (1) | CN104602973B (en) |
| WO (1) | WO2014038486A1 (en) |
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| Publication number | Publication date |
|---|---|
| EP2894068B1 (en) | 2017-09-27 |
| US9399440B2 (en) | 2016-07-26 |
| CN104602973B (en) | 2016-12-14 |
| JP5692190B2 (en) | 2015-04-01 |
| JP2014046905A (en) | 2014-03-17 |
| WO2014038486A1 (en) | 2014-03-13 |
| EP2894068A4 (en) | 2015-08-19 |
| US20150246656A1 (en) | 2015-09-03 |
| EP2894068A1 (en) | 2015-07-15 |
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